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一.冷库门冷库门,过去都是各厂自行制作木板门,采用软木隔热。一九七三年上海二商局系统开始试制冷库门,随后江苏宜兴,海门,杭州肉联厂相继生产,目前全国约有17家。根据上海、宜兴、海门三家厂统计,有58种规格,年产量1940套,年产值约1250万元。近二十年来,冷库门从无到有,发展到专业化、系列化生产,各厂都作了很多工作,不断地作多方改进,特别是上海厂对门的压紧装置与电热丝防冻装置作了改进,已通过鉴定投入
A cold storage door refrigerator door, in the past are made by the factory wooden doors, the use of cork insulation. In 1973, the Shanghai Second Commercial Bureau started to trial the freezer door. Subsequently, Jiangsu Yixing, Haimen, and Hangzhou Roulian Chang successively produced them. At present, there are about 17 in China. According to Shanghai, Yixing, Haimen three plant statistics, there are 58 kinds of specifications, the annual output of 1940 sets, annual output value of about 12.5 million yuan. In the recent two decades, Cold Storage has developed from scratch to specialized and serialized production. All the factories have done a lot of work and made continuous improvements in various fields. In particular, the Shanghai factory-to-door compression device and electric wire antifreeze device Improved, has passed the identification of inputs